Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1985-10-08
1988-09-27
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152531, 152546, 152554, B60C 922, B60C 908
Patent
active
047734620
ABSTRACT:
A pneumatic tire for a two-wheeled vehicle, including a pair of sidewalls, a tread, a carcass, bead rings embedded in radially inner ends of the pair of sidewalls and stiffeners including tapered rubber fillers. According to the invention, the tire comprises a belt layer between the tread and the carcass. The belt layer consists of at least one ply whose width is at least 0.5 time of a width of the tread. Cords of the ply have a modulus of elasticity of at least 600 kg/mm.sup.2 and are arranged substantially in parallel with an equatorial plane of the tire.
The tire according to the invention maintains a hoop effect of the belt layer to sufficiently exhibit characteristics as a radial tire and eliminates an extreme difference in bending rigidity in radial directions over from the tread to the sidewalls to obtain smooth turning of the two wheeled vehicle at a corner.
REFERENCES:
patent: 3881538 (1975-05-01), Mirtain
patent: 3961657 (1976-06-01), Chrobak
patent: 4152186 (1979-05-01), Shibata
patent: 4215735 (1980-08-01), Sato
patent: 4246949 (1981-01-01), Kawasaki et al.
patent: 4263955 (1981-04-01), Ikeda
Yoshida et al., "Stability and Steering Response In Two-Wheeled Vehicles", Journal of the Society of Automotive Engrs. of JP., 1972, vol. 26.
Kageyama, "Tire Brake", Series of Automobile Engrg., #12, pp. 45-48.
Takahashi et al., "Straight Running Motorcycle Weaving Response", SAE Technical Paper Series, 1984.
Ohkuni Shinichiro
Tamada Shinichi
Ball Michael W.
Bridgestone Tire Company Limited
Knable Geoffrey L.
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